#include <stdio.h>

struct HealthProfile
{

    char firstName[10], lastName[10], gender[2];

    int height, weight, day, month, year, current_year, tHR, maxHR, HR;
};

void read(struct HealthProfile* s) {

    printf("Please enter the patient's last name \n");
    scanf("%s", s->lastName);
    printf("Please enter the patient's first name \n");
    scanf("%s", s->firstName);
    printf("Please enter the patient's gender(M/F) \n");
    scanf("%s", s->gender);
    printf("Please enter the current year \n");
    scanf("%d", & s->current_year);
    printf("Please enter the patient's birthdate as mm/dd/yyyy \n");
    scanf("%d/%d/%d", & s->month, & s->day, & s->year);
    printf("Please enter the patient's height in inches \n");
    scanf("%d", & s->height);
    printf("Please enter the patient's weight in pounds \n");
    scanf("%d", & s->weight);
    printf("Please enter the patient's heart rate \n");
    scanf("%d", & s->HR);
  }

  int Bmi(struct HealthProfile* s) {
    return ((703 * s->weight) / (s->height * s->height));
  }

  int age(struct HealthProfile* s) {
    return (s->current_year - s->year);
  }

  void heartRate(struct HealthProfile* s) {
    /* as no formula and parameters are given for calculating heart rate So defaults has been taken*/

    int maxrate = 220;
    int heartrate = maxrate - age(s);
    int val = heartrate - s->HR;

    float res1 = (val * 0.4);
    float res2 = (val * 0.6);

    float targetmin = res1 + heartrate; // assuming HR means HeartRate
    float targetmax = res2 + heartrate;

    printf("\nHeart beat low rate: %.1f - %.1f", targetmin, targetmax);

    res1 = (val * 0.6);
    res2 = (val * 0.7);

    targetmin = res1 + heartrate;
    targetmax = res2 + heartrate;
    printf("\nHeart beat medium rate: %.1f - %.1f", targetmin, targetmax);

    res1 = (val * 0.7);
    res2 = (val * 0.85);

    targetmin = res1 + heartrate;
    targetmax = res2 + heartrate;
    printf("\nHeart beat high rate: %.1f - %.1f", targetmin, targetmax);

  }

  void display(struct HealthProfile* s) {
    printf("The patient's name %s %s \n", s->firstName, s->lastName);
    printf("The patient's gender %s \n", s->gender);
    printf("The patient's birthdate %d/%d/%d \n", s->month, s->day, s->year);
    printf("The patient's height %d \n", s->height);
    printf("The patient's weight %d\n", s->weight);
    printf("The patient's age %d \n", age(s));
    printf("The patient's BMI %d \n", Bmi(s));
    heartRate(s);
  }


int main()
{
    struct HealthProfile* HP;
    read(HP);
    display(HP);

            return 0;
}